serious, sometimes fatal events including infections, tuberculosis, lymphoma, other cancers, nervous system and blood disorders, and allergic reactions have occurred. before starting enbrel, your doctor should test you for tuberculosis and discuss whether you've been to a region you should not start enbrel if you have an infection like the flu tell your doctor if you're prone to infections, haveuts or sores, have had hepatitis b, have been treated for heart failure, or if you have symptoms such as persistent fever, bruising, bleeding, or paleness. [ phil ] get back to the things that matter most. ask your rheumatologist if enbrel is right for you. [ doctor ] enbrel, the number one biologic medicine prescribed by rheumatologists.